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发表于 2010-6-19 20:35:18
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来自： 中国辽宁大连
ASTM A105 / A105M - 10 Standard Specification for Carbon Steel Forgings for Piping Applications
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ASTM A106 / A106M - 08 Standard Specification for Seamless Carbon Steel Pipe for High-Temperature Service8 l! }6 A, {& \* G# O9 A6 h
高温用无缝碳钢管
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, N4 ^9 g r: O; x, d' UAPI 5L Gr.B为美国石油学会制订的管线钢管标准（含无缝和焊接）和钢种$ n+ T4 k0 L, o' i6 A
+ C3 u6 p! O7 B9 o' m6 s8 h3 kASTM A106和API 5L Gr B 更接近 |
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